CVE-2026-41940 (GCVE-0-2026-41940)
Vulnerability from cvelistv5
Published
2026-04-29 15:10
Modified
2026-08-11 03:55
Severity ?
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-306 - Missing Authentication for Critical Function
Summary
cPanel and WHM versions after 11.40 contain an authentication bypass vulnerability in the login flow that allows unauthenticated remote attackers to gain unauthorized access to the control panel.
References
| URL | Tags | |
|---|---|---|
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Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WebPros | cPanel |
Version: 11.40.0.0 < 11.86.0.41 Version: 11.88.0.0 < 11.94.0.28 Version: 11.96.0.0 < 11.102.0.39 Version: 11.104.0.0 < 11.110.0.97 Version: 11.112.0.0 < 11.118.0.63 Version: 11.120.0.0 < 11.124.0.35 Version: 11.126.0.0 < 11.126.0.54 Version: 11.128.0.0 < 11.130.0.19 Version: 11.132.0.0 < 11.132.0.29 Version: 11.134.0.0 < 11.134.0.20 Version: 11.136.0.0 < 11.136.0.5 |
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CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog
Date added: 2026-04-30
Due date: 2026-05-03
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Used in ransomware: Known
Notes: https://support.cpanel.net/hc/en-us/articles/40073787579671-cPanel-WHM-Security-Update-04-28-2026 ; https://docs.cpanel.net/release-notes/release-notes/ ; https://docs.wpsquared.com/changelogs/versions/changelog/#13617 ; https://nvd.nist.gov/vuln/detail/CVE-2026-41940"
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"cveMetadata": "{\"cveId\": \"CVE-2026-41940\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-11T03:55:30.673Z\", \"dateReserved\": \"2026-04-22T18:50:43.621Z\", \"assignerOrgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"datePublished\": \"2026-04-29T15:10:37.899Z\", \"assignerShortName\": \"VulnCheck\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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